/Engine/Plugins/Developer/Concert/ConcertSync/ConcertSyncCore/Source/ConcertSyncCore/Public/HistoryEdition/DebugDependencyGraph.h
Several online editors exist and can be found by searching for "graphviz online", e.g.
namespace UE { namespace ConcertSyncCore { namespace Graphviz { [FString](API\Runtime\Core\Containers\FString) UE::ConcertSyncCore::Graphviz::ExportToGraphviz ( const [FActivityDependencyGraph](API\Plugins\ConcertSyncCore\HistoryEdition\FActivityDependencyGraph) & Graph, [FMakeNodeTitle](API\Plugins\ConcertSyncCore\HistoryEdition\FMakeNodeTitle) MakeNodeTitleFunc, [FGetNodeStyle](API\Plugins\ConcertSyncCore\HistoryEdition\FGetNodeStyle) GetNodeStyleFunc, [FGetEdgeStyle](API\Plugins\ConcertSyncCore\HistoryEdition\FGetEdgeStyle) GetEdgeStyleFunc ) } } }